User's Manual

13. E261
14. E710, E711, E712, E717
15. E803
COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
10-69
CHAPTER 10 TROUBLESHOOTING
Checks
Turn off and on the power supply.
Is the problem corrected?
Replace the composite power
supply PCB. Is the problem
corrected?
Cause
Power supply
frequency
Composite
power supply
PCB
DC controller
PCB
Step
1
2
Results
YES
YES
NO
Action
End.
• If the problem occurs
frequently, advise the
user to obtain a
frequency stabilizer.
End.
Replace the DC
controller PCB.
Checks
Turn off and on the power switch.
Cause
DC controller
PCB
Step
1
Results
YES
NO
Action
End.
Replace the DC
controller PCB.
Checks
Turn off and on the power switch.
Is the problem corrected?
Replace the DC controller PCB. Is
the problem corrected?
Cause
Malfunction
DC controller
PCB
Composite
power supply
PCB
Step
1
2
Results
YES
YES
NO
Action
End.
End.
Replace the composite
power supply PCB.